如何在Go语言中比较两个结构体并根据结果修改第三个结构体的值？

type User struct {
    Name   string
    Age    int64
    Hobbys Hobby
    Sex string
}

type Hobby struct {
    Cars  Car
    Games Game
}

type Car struct {
    Brand string
    Color string
    Price string
}

type Game struct {
    Number int64
    Style  string
}

func main() {
    user1 := User{
        Name: "张三",
        Age: 15,
        Hobbys: Hobby{
            Cars: Car{
                Brand: "奔驰",
                Color: "白色",
                Price: "100万",
            },
            Games: Game{
                Number: 10000,
                Style:  "街机",
            },
        },
        Sex: "男",
    }

    user2 := User{
        Name: "张三",
        Age: 15,
        Hobbys: Hobby{
            Cars: Car{
                Brand: "宝马",
                Color: "白色",
                Price: "100万",
            },
            Games: Game{
                Number: 10000,
                Style:  "街机",
            },
        },
        Sex: "男",
    }

    user3 := User{
        Name: "张三",
        Age: 15,
        Hobbys: Hobby{
            Cars: Car{
                Brand: "奔驰",
                Color: "白色",
                Price: "100万",
            },
            Games: Game{
                Number: 10000,
                Style:  "街机",
            },
        },
        Sex: "男",
    }
    traverse(user1, user2, user3)
    fmt.Printf("%+v\n", user1)
}

func traverse(a, b, c interface{}) {
    aValue := reflect.ValueOf(a)
    aType := reflect.TypeOf(a)
    bValue := reflect.ValueOf(b)
    cValue := reflect.ValueOf(&c)
    for i := 0; i < aValue.NumField(); i++ {
        aField := aValue.Field(i)
        aFieldType := aType.Field(i)
        bField := bValue.Field(i)
        if !reflect.DeepEqual(aField.Interface(), bField.Interface()) {
            if aField.Kind() == reflect.Struct {
                traverse(aField.Interface(), bField.Interface(), c)
            } else if aField.Kind() == reflect.String {
                fmt.Println("不同的：", aFieldType.Name, aFieldType.Type, aField.Interface(), "====", bField.Interface())
                v := reflect.ValueOf(&c).Elem()
                tmp := reflect.New(v.Elem().Type()).Elem()
                tmp.Set(v.Elem())
                tmp.Field(i).SetString("特斯拉")
                v.Set(tmp)
                fmt.Printf("%+v\n", cValue.Elem())
            }
        }
    }
}